The contaminations, grease and oil washed from the work pieces during the pre-treatment need to be handled according to the environmental protection requirements and need to be disposed accordingly. In case of smaller volumes (e.g.: washer with steam shave), it may be economical to collect and dispose the generated waste water. However, with larger equipment, it is absolutely recommended to install a local waste water treatment system. Further elements of pre-treatment equipment; various water preparatory and water treatment units may include but not limited to the following:
